Collagen tampons as aminoglycoside carriers to reduce postoperative infection rate in prosthetic repair of groin hernias.

OBJECTIVE: To find out whether collagen tampons treated with gentamicin would prevent postoperative infections in patients operated on for groin hernias by insertion of prostheses. SETTING: University hospital, Italy. DESIGN: Prospective randomised trial. PATIENTS: 595 patients who required prosthetic repair of a groin hernia. INTERVENTIONS: All repairs were by our standard surgical technique including prophylactic ceftriaxone, local anaesthesia, and insertion of a polypropylene mesh. 301 patients also had a gentamicin laced collagen tampon placed in front of the prosthetic mesh before the aponeurosis of external oblique muscle was sutured. RESULTS: 1/301 patients in the gentamicin group (0.3\%) developed a postoperative wound infection compared with 6/294 in the control group (2.0\%), (p = 0.04 Fisher exact test). CONCLUSIONS: Gentamicin-laced collagen tampons are effective in reducing the postoperative infection rate in patients operated on for groin hernia by insertion of a prosthesis